CN201152095Y

CN201152095Y - Slip bolt

Info

Publication number: CN201152095Y
Application number: CNU2007203003064U
Authority: CN
Inventors: 严群方
Original assignee: 周仁
Priority date: 2007-12-24
Filing date: 2007-12-24
Publication date: 2008-11-19
Anticipated expiration: 2017-12-24

Abstract

The utility model relates to a bolt which consists of a bolt base, a bayonet lock and a handle; wherein, the bolt base is arranged in the middle part of a fixing door leaf of a double-leaf metal door and is provided with a long hole. The bolt is characterized in that upper and lower bolt guide plates are arranged at the back of the bolt base; the handle passes through the long hole arranged on the bolt base from the front of the bolt base and connects the bayonet lock arranged at the back of the bolt base; and the connecting point of the handle and the bayonet lock is arranged between two bolt guide plates; the bayonet lock passes through two guide holes of two bolt guide plates. Compared with the prior bolt, the bolt provided by the utility model has the advantages that the bolt has compact structure and small size, thereby reducing the damage to the strength of the door leaf, caused by the door leaf punching during installing the bolt; besides, the stroke of the bolt is long, the head of the bolt is far away form a bolt panel, so the strength of the door leaf can not be affected.

Description

Latch

Technical field

The utility model belongs to a kind of accessory of metal door, is a kind of latch of metal door specifically.

Background technology

At present on the fixedly door leaf of products such as all biparting steel entering house doors, anti-theft safety door, steel timber, be provided with a latch, its latch has turnover plate type, button driving, sawtooth slidingtype etc., the fork of above-mentioned latch is all nearer apart from the latch panel, latch installing hole on the door leaf is near excessively apart from the door leaf end, causes the door leaf strength reduction; Latch is in stroke, and bolt rod can depart from the bolt rod axle slightly, has influence on the location dimension of door leaf doorframe pin hole to a certain extent; The latch panel length about 180, when being installed on the door leaf, causes the door leaf strength reduction usually.

Summary of the invention

The purpose of this utility model provides that a kind of latch panel size is little, the latch stroke is long, the fork latch all far away apart from the latch panel, to overcome above-mentioned deficiency.

To achieve these goals, the utility model is made of plug housing, bayonet lock and handle, wherein plug housing is arranged on the fixedly door leaf middle part of biparting metal door, plug housing is provided with a slotted hole, be characterized in: the back side of plug housing is provided with two latch guide plates up and down, the slotted hole that handle passes from the front of plug housing on the plug housing is connected with the bayonet lock that is arranged on the plug housing back side, the tie point of handle and bayonet lock is between two latch guide plates, and bayonet lock passes the pilot hole of two latch guide plates.

The middle part of above-mentioned plug housing is a plane that concaves, and slotted hole is arranged on this plane.

Above-mentioned bayonet lock is provided with a hole, and the inside end of handle inserts in the hole on the bayonet lock, realizes being connected of handle and bayonet lock.

At least be provided with the hole face of two circles on the slotted hole on the above-mentioned plug housing.

Above-mentioned handle constitutes by three sections, one section lever piece that is a size greater than slotted hole outside plug housing; One section in slotted hole is an oval-shaped glissile segment of myopia, and its oval-shaped major diameter size is greater than the width of slotted hole, and less than the diameter of circular port face on the slotted hole, oval-shaped minor axis size is less than the width of slotted hole; The 3rd section is the linkage section that inserts bayonet lock.

The utility model is compared with existing latch has following characteristics: compact overall structure, size are less, have reduced when latch is installed the door leaf punching to the destruction of door leaf intensity; The latch stroke is long, and fork is far away apart from the latch panel, and door leaf intensity is not had influence.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the structural representation of the utility model latch guide plate.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is the structural representation of the utility model handle.

Fig. 6 is the left view of Fig. 5.

Among the figure: 1-plug housing, 1.1-slotted hole, 1.2-circular port face, 2-latch, 3-latch guide plate, 3.1-pilot hole, 4-handle, lever operated section of 4.1-, 4.2-handle glissile segment, 4.3-handle linkage section.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

The utility model is made of plug housing 1, bayonet lock 2 and handle 4, wherein plug housing 1 is arranged on the fixedly door leaf middle part of biparting metal door, plug housing 1 is provided with a slotted hole 1.1, the back side of plug housing 1 is provided with two latch guide plates 3 up and down, the slotted hole 1.1 that handle 4 passes from the front of plug housing 1 on the plug housing 1 is connected with the bayonet lock 2 that is arranged on plug housing 1 back side, the tie point of handle 4 and bayonet lock 2 is between two latch guide plates 3, and bayonet lock passes the pilot hole 3.1 of two latch guide plates.

Operating principle of the present utility model is: the lever piece 4.1 of holding handle 4, rotary handle 4, the oval-shaped minor axis of the glissile segment 4.2 of handle is moved in slotted hole 1.1, and the linkage section 4.3 of handle drives bayonet locks 2 and moves up and down in the pilot hole 3.1 of latch guide plate 3, realize biparting metal door fixedly door leaf locking and open.When handle 4 moves to circular port face 1.2 in the slotted hole 1.1, rotatable handgrip 4, make in the circular port face 1.2 of oval-shaped major diameter in slotted hole 1.1 of glissile segment 4.2 of handle, release handle 4, this moment is owing to the width of oval-shaped major diameter size greater than slotted hole 1.1, making handle 4 be shelved in the circular port face 1.2 can not move, and makes handle 4 fixing, even bayonet lock 2 is fixing.

The content that is not described in detail in this manual belongs to this area professional and technical personnel's known prior art.

Claims

1, a kind of latch, constitute by plug housing (1), bayonet lock (2) and handle (4), wherein plug housing (1) is provided with a slotted hole (1.1), it is characterized in that: the back side of plug housing (1) is provided with two latch guide plates (3) up and down, the slotted hole (1.1) that handle (4) passes from the front of plug housing (1) on the plug housing (1) is connected with the bayonet lock (2) that is arranged on plug housing (1) back side, the tie point of handle (4) and bayonet lock (2) is between two latch guide plates (3), and bayonet lock (2) passes the pilot hole (3.1) of two latch guide plates (3).

2, latch as claimed in claim 1 is characterized in that: the middle part of plug housing (1) is a plane that concaves, and slotted hole (1.1) is arranged on this plane.

3, latch as claimed in claim 1 is characterized in that: bayonet lock (2) is provided with a hole, and the inside end of handle (4) inserts in the hole on the bayonet lock (2), realizes being connected of handle (4) and bayonet lock (2).

4, latch as claimed in claim 1 or 2 is characterized in that: the hole face (1.2) that is provided with two circles on the slotted hole (1.1) on the plug housing (1) at least.

5, as claim 1 or 3 described latches, it is characterized in that: handle (4) constitutes by three sections, one section lever piece (4.1) that is a size greater than slotted hole outside plug housing (1); One section in slotted hole (1.1) is an oval-shaped glissile segment of myopia (4.2), its oval-shaped major diameter size is greater than the width of slotted hole (1.1), and going up the diameter of circular port face (1.3) less than slotted hole (1.1), oval-shaped minor axis size is less than the width of slotted hole (1.1); The 3rd section is the linkage section (4.3) that inserts bayonet lock (2).